When galaxies collide, their supermassive black holes enter into a gravitational dance, gradually orbiting each other ever closer until eventually merging. We know they merge because we see the gravitational beasts that result, ...
Astronomy
Nov 27, 2023
1
55
In Einstein's famous theory of relativity the concepts of immutable space and time aren't just put aside, they're explicitly and emphatically rejected. Space and time are now woven into a coexisting fabric. That is to say, ...
General Physics
Nov 13, 2023
14
104
Astronomers are currently pushing the frontiers of astronomy. At this very moment, observatories like the James Webb Space Telescope (JWST) are visualizing the earliest stars and galaxies in the universe, which formed during ...
Astronomy
Nov 1, 2023
1
108
If you, like me, have used telescopes to gaze out at the wonders of the universe, then you too may have been a little captivated by the topic of gravitational lensing. Think about it: how cool is it that the very universe ...
Astronomy
Nov 1, 2023
0
27
Researchers from the University of Southampton, together with colleagues from the universities of Cambridge and Barcelona, have shown it's theoretically possible for black holes to exist in perfectly balanced pairs—held ...
General Physics
Oct 22, 2023
22
127
When two black holes collide, the impact is so big that we can detect it all way here on Earth. These objects are so immense that their collisions send ripples through spacetime itself. Scientists call these ripples gravitational ...
Astronomy
Oct 11, 2023
0
94
Radio astronomy and satellite communication have a long common history. Advances made in one field have benefitted the other, and our modern era of spacecraft and mobile internet is a product of this partnership. But there ...
Astronomy
Oct 9, 2023
0
26
With his theory of General Relativity in 1915, Albert Einstein revolutionized how we think about our universe. Rather than the cosmos simply providing the room for the planets and stars to orbit each other, space and time ...
Astronomy
Oct 5, 2023
11
107
A small team of astrophysicists and mathematicians from the University of Southampton, the University of Cambridge and Institut de Ci'encies del Cosmos Universitat de Barcelona has proposed that certain pairings of black ...
For those still holding out hope that antimatter levitates rather than falls in a gravitational field, like normal matter, the results of a new experiment are a dose of cold reality.
General Physics
Sep 27, 2023
7
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